KVM tuning?

[totalimpact]

Are there any notes on best practice KVM settings for windows guests?

for instance
-net tap
hugepages
cache=? none? writeback? (does this apply to certain storage setups like raid card with bbu?)

After some reading, those are what I find, but I am wondering if they give worthy gains - or is proxmox already fine tuned to a reasonable level?

 

[ashes]

http://www.linux-kvm.org/page/WindowsGuestDrivers/kvmnet/registry